oj.uz

답안 #1116023

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1116023 2024-11-21T07:54:18 Z simona1230 Magic Tree (CEOI19_magictree) C++17
47 / 100
 2000 ms 1048576 KB 
#include <bits/stdc++.h>
#define endl '\n'
using namespace std;

long long n,m,k;
long long d[100001];
long long w[100001];
vector<long long> v[100001];

void read()
{
    cin>>n>>m>>k;
    for(long long i=2;i<=n;i++)
    {
        long long p;
        cin>>p;
        v[p].push_back(i);
    }

    for(long long i=1;i<=m;i++)
    {
        long long x;
        cin>>x;
        cin>>d[x]>>w[x];
    }
}

set<long long> s[100001];
unordered_map<long long,long long> mp[100001];

void dfs(long long i)
{
    //cout<<i<<endl;
    for(long long j=0;j<v[i].size();j++)
    {
        long long nb=v[i][j];
        dfs(nb);

        for(auto it=s[nb].begin();it!=s[nb].end();it++)
        {
            long long c=*it;
            s[i].insert(c);
            mp[i][c]+=mp[nb][c];
        }
    }

    long long rem=w[i];
    auto it=s[i].upper_bound(d[i]);
    vector<int> h;
    while(rem&&it!=s[i].end())
    {
        long long in=min(rem,mp[i][*it]);
        mp[i][*it]-=in;
        rem-=in;
        it++;
        if(mp[i][*it]==0)h.push_back(*it);
    }

    for(int j=0;j<h.size();j++)
        s[i].erase(h[j]);

    if(d[i])s[i].insert(d[i]);
    mp[i][d[i]]+=w[i];

    /*cout<<"! "<<i<<endl;
    for(auto it=s[i].begin();it!=s[i].end();it++)
        cout<<*it<<" "<<mp[i][*it]<<endl;*/
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    read();
    dfs(1);

    long long ans=0;
    for(auto it=s[1].begin();it!=s[1].end();it++)
        ans+=mp[1][*it];
    cout<<ans<<endl;
    return 0;
}

Compilation message

magictree.cpp: In function 'void dfs(long long int)':
magictree.cpp:34:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for(long long j=0;j<v[i].size();j++)
      |                       ~^~~~~~~~~~~~
magictree.cpp:59:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(int j=0;j<h.size();j++)
      |                 ~^~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 12880 KB Output is correct
2 Correct 3 ms 12880 KB Output is correct
3 Correct 3 ms 12880 KB Output is correct
4 Correct 4 ms 12880 KB Output is correct
5 Correct 3 ms 12880 KB Output is correct
6 Correct 3 ms 12880 KB Output is correct
7 Correct 3 ms 12880 KB Output is correct
8 Correct 3 ms 12880 KB Output is correct
9 Correct 3 ms 12880 KB Output is correct

Subtask #2
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 182 ms 54944 KB Output is correct
2 Execution timed out 2140 ms 972988 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 13648 KB Output is correct
2 Correct 12 ms 17488 KB Output is correct
3 Correct 47 ms 30988 KB Output is correct
4 Correct 192 ms 98888 KB Output is correct
5 Runtime error 1908 ms 1048576 KB Execution killed with signal 9
6 Halted 0 ms 0 KB -

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 125 ms 37708 KB Output is correct
2 Correct 100 ms 36424 KB Output is correct
3 Correct 101 ms 49992 KB Output is correct
4 Correct 50 ms 34756 KB Output is correct
5 Correct 111 ms 61768 KB Output is correct

Subtask #5
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 12880 KB Output is correct
2 Correct 3 ms 12880 KB Output is correct
3 Correct 3 ms 12880 KB Output is correct
4 Correct 4 ms 12880 KB Output is correct
5 Correct 3 ms 12880 KB Output is correct
6 Correct 3 ms 12880 KB Output is correct
7 Correct 3 ms 12880 KB Output is correct
8 Correct 3 ms 12880 KB Output is correct
9 Correct 3 ms 12880 KB Output is correct
10 Correct 184 ms 52040 KB Output is correct
11 Correct 140 ms 47432 KB Output is correct
12 Correct 402 ms 169824 KB Output is correct
13 Correct 51 ms 33988 KB Output is correct
14 Correct 390 ms 209764 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 16976 KB Output is correct
2 Correct 51 ms 31560 KB Output is correct
3 Correct 48 ms 31580 KB Output is correct
4 Correct 74 ms 31304 KB Output is correct
5 Correct 26 ms 29644 KB Output is correct
6 Correct 1092 ms 500328 KB Output is correct
7 Correct 1475 ms 619816 KB Output is correct

Subtask #7
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 12880 KB Output is correct
2 Correct 3 ms 12880 KB Output is correct
3 Correct 3 ms 12880 KB Output is correct
4 Correct 4 ms 12880 KB Output is correct
5 Correct 3 ms 12880 KB Output is correct
6 Correct 3 ms 12880 KB Output is correct
7 Correct 3 ms 12880 KB Output is correct
8 Correct 3 ms 12880 KB Output is correct
9 Correct 3 ms 12880 KB Output is correct
10 Correct 5 ms 13648 KB Output is correct
11 Correct 12 ms 17488 KB Output is correct
12 Correct 47 ms 30988 KB Output is correct
13 Correct 192 ms 98888 KB Output is correct
14 Runtime error 1908 ms 1048576 KB Execution killed with signal 9
15 Halted 0 ms 0 KB -

Subtask #8
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 12880 KB Output is correct
2 Correct 3 ms 12880 KB Output is correct
3 Correct 3 ms 12880 KB Output is correct
4 Correct 4 ms 12880 KB Output is correct
5 Correct 3 ms 12880 KB Output is correct
6 Correct 3 ms 12880 KB Output is correct
7 Correct 3 ms 12880 KB Output is correct
8 Correct 3 ms 12880 KB Output is correct
9 Correct 3 ms 12880 KB Output is correct
10 Correct 182 ms 54944 KB Output is correct
11 Execution timed out 2140 ms 972988 KB Time limit exceeded
12 Halted 0 ms 0 KB -